Option A. The author included the paragraph to help the reader visualize the thorough precautions that were in place.
Explanation:
The paragraph adds a lot if detail and depth to the whole story, as the author uses imagery to give the reader an in-depth description of all of the well-thought precautions being taken for such a serious situation. The use of details in writing helps to support the main topic or theme of the narration and gives the reader a better understanding of what the author is trying to explain.
